A single remote control that controls up to 4 different codes is self-programmable and compatible with most remote controls (such as Faac, Came, Nice etc) with a frequency of 433.92 MHz with fixed code. Very small size, made of durable ABS and aluminium, features a modern and neat design, and the sliding button cover prevents accidental pressing and comes without battery (27 to 12 V) which is interchangeable without losing the stored codes. This product comes without instructions, but it is very easy to set the remote control to about half a centimeter before the remote control to be duplicated. Simultaneously press the button to be duplicated on the original remote control and the programmable button on the purchased remote control (A or B) starts the LED to flash constantly, after about 3 seconds release the buttons. Repeat the same step to program the other buttons of the remote control. To clear the existing memory, simply press the A and B buttons of the remote control until the LED flashes constantly, then release the buttons to clear the memory of both memories. Compatible frequency: 433.92 with fixed code Copy codes: up to 4 codes Not compatible with rolling code remotes The batteries of the remote control are not included (27-12 V)